<template>
  <div class="login_container">
    <div class="log_box">
      <!--      图像位置-->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="">
      </div>
      <!--      表单-->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules"
               label-width="0px"
               class="login_form">
        <!--        用户名-->
        <el-form-item prop="username">
          <el-input prefix-icon="iconfont icon-user" v-model="loginForm.username"
                    placeholder="请输入用户名">
          </el-input>
        </el-form-item>
        <!--        密码-->
        <el-form-item prop="password">
          <el-input prefix-icon="iconfont icon-3702mima" v-model="loginForm.password"
                    type="password" placeholder="请输入密码">
          </el-input>
        </el-form-item>
        <!--        按钮-->
        <el-form-item class="btns">
          <el-button type="primary" round @click="login">登录</el-button>
          <el-button type="info" round @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
  export default {
    name: "Login",
    data() {
      return {
        // 登录表单数据对象
        loginForm: {
          username: 'admin',
          password: '123456'
        },
        // 表单验证规则
        loginFormRules: {
          username: [
            {required: true, message: '请输入用户名', trigger: 'blur'},
            {min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur'}
          ],
          password: [
            {required: true, message: '请输入密码', trigger: 'blur'},
            {min: 6, max: 12, message: '长度在 6 到 12 个字符', trigger: 'blur'}
          ]
        }
      }
    },
    methods: {
      resetLoginForm() {
        this.$refs.loginFormRef.resetFields();
      },
      login() {
        this.$refs.loginFormRef.validate(async valid => {
          if (!valid) return;
          const {data: res} = await this.$http.post('login', this.loginForm)
          if (res.meta.status === 200) {
            this.$message.success('登录成功')
            window.sessionStorage.setItem('token', res.data.token)
            await this.$router.push('/home')
          } else this.$message.error('登录失败')
        })
      }
    }
  }
</script>

<style lang="less" scoped>

  .login_container {
    background-color: #2b4b6b;
    height: 100%;
    width: 100vw;
  }

  .log_box {
    width: 550px;
    height: 350px;
    background-color: #ccc;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

    .avatar_box {
      height: 150px;
      width: 150px;
      box-shadow: 0 2px 10px #ddd;
      border: 2px solid #ccc;
      border-radius: 50%;
      position: absolute;
      left: 50%;
      top: -65px;
      transform: translate(-50%);

      img {
        height: 100%;
        width: 100%;
        border-radius: 50%;
        background-color: #eee;
      }
    }

    .login_form {
      position: absolute;
      width: 100%;
      bottom: 0;
      top: 120px;
      padding: 0 20px;
      box-sizing: border-box;

      .btns {
        display: flex;
        justify-content: center;
      }
    }
  }
</style>
